The American Southwest has been decimated by drought. Nevada and Arizona skirmish over dwindling shares of the Colorado River, while California watches, deciding if it should just take the whole river all for itself. Into the fray steps Las Vegas water knife Angel Velasquez. Detective, assassin, and spy, Angel "cuts" water for the Southern Nevada Water Authority and its boss, Catherine Case, ensuring that her lush, luxurious arcology developments can bloom in the desert and that anyone who challenges her is left in the gutted-suburban dust. When rumors of a game-changing water source surface in Phoenix, Angel is sent to investigate. With a wallet full of identities and a tricked-out Tesla, Angel arrows south, hunting for answers that seem to evaporate as the heat index soars and the landscape becomes more and more oppressive.